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Service Information
Document Title: Function Group: Information Type: Date:
Engine, description 200 Service Information 2014/10/30
Profile:
EXC, EC250D NL [GB]
Engine, description
Engine D8H is a straight six-cylinder, four-stroke, turbocharged diesel engine with direct injection and intercooler. The
engine meets governing legislation according to Tier 4 interim for exhaust emissions.
The engine features a Common Rail Fuel System controlled by the Engine Electronic Control Unit (E-ECU). The engine with
ACT (Advanced Combustion Technology) features split injection and turbocharger with mechanical wastegate. The Exhaust
Aftertreatment System (EATS) is equipped with a Diesel Oxidation Catalyst (DOC) and a Diesel Particulate Filter (DPF) to
reduce the particulate content in the exhausts. Cooled Exhaust Gas Recirculation (EGR) reduces NO contents and reduces
emissions. All electronic functions in the engine are controlled by Volvo's Engine Management System, EMS2.2.
For more information, see:







220 Lubrication system, description
230 Fuel system, description
250 Inlet and exhaust system, description
254 Exhaust Aftertreatment System, description
255 Turbocharger, description
260 Cooling system, description
293 Exhaust Gas Recirculation (EGR), description
The cylinders are numbered in sequence, starting at the flywheel. Ignition order: 1-5-3-6-2-4. The engine's rotational
direction is counter-clockwise, seen from the flywheel side.
Engine identification
Figure 1
Identification plates
The engine's serial number is stamped on the cylinder block's side. The identification plates on the cylinder block's side and
on the valve cover contain model designation, serial number, manufacturing country, recommended fuels, and so on. The
identification plates also include emission-related supplementary information. The engine's model designation and serial
number must be indicated when ordering spare parts.
Engine protection
The ECU contains functionality designed to protect the engine from damage during extreme operating conditions or from
further damage when an essential engine component fails. There are several proactive functions, and different applications
have different functions activated. The functions that can be activated are:
 High coolant temperature














High inlet manifold air pressure
High inlet manifold air temperature
High oil temperature
Low oil pressure
Low coolant level
High temperature of cooled EGR exhausts after the EGR-cooler
High crankcase pressure
High temperature of EGR actuator
High soot load
High differential pressure across Diesel Particulate Filter (DPF)
High exhaust temperature
High ECU temperature
High DPF temperature
EATS air pump failure
Various protective actions such as warning lights, engine torque reduction, engine speed limitation, and vehicle speed
limitation may be taken when the above functions reach dangerous levels that may damage the engine. In order to always
allow the operator to move a machine away from an unsafe situation, there is a delay of at least 30 seconds before the
protective actions (such as forced idle and forced shutdown) are activated after a Key-ON. If the engine has been forced to
shut down or forced to idle due to an active engine protection function, the operator can obtain a 30 second delay by
powering down the EMS with a Key-OFF for 7 seconds and then a Key-ON (the EMS is powered down by the Vehicle-ECU
(V-ECU) after the ignition key has been in its OFF position for approx. 7 seconds). In addition to the above protective
functions, other software functions may request engine protection, such as:





High Altitude (ensures that high compressor charge-air temperature is never reached)
Low Coolant Temp
Crank Sensor Failure
Gear Ratio
Regeneration
Warning lights
There are two levels for warning lights, an amber caution light and a red stop light.


The amber light indicates a warning situation
The red light indicates that the vehicle must be stopped.
For more information, see .
387 Central warning
Forced Idle
The engine can be forced to idle speed by the engine protection function. Forced idle is active until conditions triggering the
problem are back within the normal working range or the EMS is powered down.
Engine shutdown
The engine can be forced to shut down after conditions have reached levels that may cause engine failure and the machine
speed is below a specified value.
Machine speed and engine speed limits
The engine protection function can limit the machine's speed and/or the engine's rpm.
Levels of engine protection
Available proactive functions depend not only on the application but also on what level of protection has been activated for
the specific machine. Two levels of engine protection are offered; the standard level is Basic protection and the optional level
is Extended protection. The general difference between basic and extended engine protection is that no active actions such
as forced idle and forced shutdown will be taken in basic engine protection (with the exception of crankcase pressure that
can cause shutdown in either setup). Warnings will be given to the operator regardless of engine protection level.
Parameters





(MCJ) Trimcode CRIN 3.3 injector cylinder 1
(MCK) Trimcode CRIN 3.3 injector cylinder 2
(MCL) Trimcode CRIN 3.3 injector cylinder 3
(MCM) Trimcode CRIN 3.3 injector cylinder 4
(MCN) Trimcode CRIN 3.3 injector cylinder 5




(MCO) Trimcode CRIN 3.3 injector cylinder 6
(FAU) Automatic engine shut off
(FAV) Automatic engine shut off, time
(YA) Idle speed, setting
Supplementary information
 200 Component locations
Function check
 17030-3 Parameter, programming
Diagnostics
Detailed information about the following relevant warnings and error codes is available under the diagnostics tab.
Component Control unit Message ID
MID128 PID98
FX1006
MID128 PID175
SE2203 MID128 PID100
SE2302 MID128 PID97
SE2507 MID128 PID105
SE2508 MID128 PID102
SE2516 MID128 PID412
SE2519 MID128 PID81
SE2603 MID128 PID111
SE2606 MID128 PID110
E-ECU temperature MID128 PPID55
Emergency stop (Engine shutdown) MID128 PPID235
Soot load MID128 PPID326
Service Information
Document Title: Function Group: Information Type: Date:
Component locations 200 Service Information 2014/10/30
Profile:
EXC, EC250D NL [GB]
Component locations
Figure 1
Engine, front side
1 Flywheel housing 11 Thermostat housing
2 High pressure fuel pump 12 Engine oil remote port
3 Crankcase ventilation duct 13 Engine oil cooler
4 Spark plug 14 Oil pan
5 Glow plug 15 Common rail
6 Turbocharger waste-gate 16 Dipstick gauge
7 Valve cover 17 ECU connecting port
8 Spark plug cable 18 Fuel feed pump
9 Spark plug control unit 19 Engine oil filter
10 Pre-heating coil housing
Figure 2
Engine, back side
20 Fan pulley 26 EGR cooler
21 EGR Venturi tube 27 EGR actuator
22 Air intake tube 28 Starter motor
23 Turbocharger 29 Electric air pump
24 Engine oil filling port 30 Engine oil level sensor
25 Partial flowburner 31 Fan belt
Service Information
Document Title: Function Group: Information Type: Date:
E-ECU, MID 128, changing
non-programmed ECU
200 Service Information 2014/10/30
Profile:
EXC, EC250D NL [GB]
E-ECU, MID 128, changing non-programmed ECU
Op nbr 200-068
1. Park the machine in the service position A, see .
091 Service positions
2. Turn OFF the battery disconnect switch.
3. Download software to VCADS Pro computer for target machine.
4. Connect the VCADS Pro computer to the machine, and perform the operation '28423-7 MID 128 control unit,
programming'.
5. When VCADS Pro 'MID 128 ECU, programming' window appears, follow the instructions for replacing E-ECU.
6. Disconnect the wiring harness connectors from E-ECU and remove 2 screws fixing the clamps.
Figure 1
1.
2.
3.
Connector
Screw
Screw
NOTE!
Pull up the locking device to disconnect the connector.
7. Remove 4 screws fixing the E-ECU.
8. Install new E-ECU, and tighten 4 screws.
9. Connect the wiring harness connectors to the E-ECU and tighten 2 screws fixing the clamps.
10. After replacing E-ECU, press OK button of VCADS Pro operation '28423-7 MID 128 control unit, programming'.
Now VCADS Pro starts the programming of software and parameters to the new E-ECU.
NOTE!
If not able to read out the parameters with the program operation, the VCADS Pro operation 25438–8 “Nox sensor,
age compensation, reset” has to be performed.
Service Information
Document Title: Function Group: Information Type: Date:
E-ECU, MID 128, changing
pre-programmed ECU
200 Service Information 2014/10/30
Profile:
EXC, EC250D NL [GB]
E-ECU, MID 128, changing pre-programmed ECU
Op nbr 200-070
1. Park the machine in the service position A, see .
091 Service positions
2. Turn OFF the battery disconnect switch.
3. Connect VCADS Pro computer to the machine, and perform the operation '17030-3 Parameter, programming'.
4. Use the function 'save all parameters to job card'.
5. Disconnect the wiring harness connectors from E-ECU and remove 2 screws fixing the clamps.
Figure 1
1.
2.
3.
Connector
Screw
Screw
NOTE!
Pull up the locking device to disconnect the connector.
6. Remove 4 screws fixing the E-ECU.
7. Install new E-ECU, and tighten 4 screws fixing the E-ECU.
8. Connect the wiring harness connectors to the E-ECU and tighten 2 screws fixing the clamps.
9. Connect VCADS Pro computer to the machine, and perform the operation 17030-3 Parameter, programming'. Now
the customer parameters are changed according to the job card saved at step 2.
10. Perform VCADS Pro operation 25438–8 “Nox sensor, age compensation, reset”.
Service Information
Document Title: Function Group: Information Type: Date:
VCADS Pro, Operations 200 Service Information 2014/10/30
Profile:
EXC, EC250D NL [GB]
VCADS Pro, Operations
The following VCADS Pro operations are available for function group 2. Operations used when changing or working on
components are mandatory.
Tests
Operation Application
20046-3 Read out engine information The operation is used to read out the engine emission and engine certificate
information when requested by the customer or other interested parties.
21006-3 Cylinder compression, test Used when there is a suspicion of fault and/or at abnormal values/readings.
This test indicates if there is any deviation in compression in any cylinder in
relation to the other cylinders.
As a first check this operation is both easy and fast to perform instead of a
real compression test.
23017-3 Feed pressure, inspection Used when there is a suspicion of fault and/or at abnormal values/readings.
23712-3 Injectors shut off, manual Used when there is a suspicion of fault and/or at abnormal values/readings.
23777-3 Fuel system, check Check the fuel system on common rail engines.
In this test, it is possible to check the engine at different running condition.
25410-3 Air pump exhaust aftertreatment,
test
Used when there is a suspicion of fault and/or at abnormal values/readings.
Air for combustion and HC injection
25411-3 Burner exhaust aftertreatment, test Used when there is a suspicion of fault and/or at abnormal values/readings.
25433-3 Fuel system exhaust aftertreatment,
bleeding
Used to remove any air in the EATS system.
25438-3, Nox sensor, age compensation,
reset
Used to reset the age compensation value stored in the MID 128, E-ECU.
A reset is needed either when the E-ECU is replaced and there is no
possibility to read out the values from the old E-ECU or when a new Nox
sensor is mounted.
25440-3 Fuel pressure, exhaust
aftertreatment system, test
The test checks;
The fuel supply to the shut off valve, pressure and temperature
The pressure after MV1 to the HC injector
The pressure after MV2 to the burner
25456-3 Exhaust aftertreatment diagnostics Perform a simple check of the included components in the exhaust
aftertreatement system.
25457-3 Diesel Particulate Filter Service
Regeneration
Used when the soot load level becomes higher than what can be removed
by the normal regeneration process.
See 254 Exhaust Aftertreatment System, description
25460-3 Reset soot and ash load When the diesel particulate filter has been changed, the soot load and the
ash load must be reset. The reset is needed to indicate to the system that
the filter has been cleaned.
The soot load and ash load must only be reset if a clean filter has been
installed.
27502-2 Engine speed control, test Used when there is a suspicion of fault and/or at abnormal values/readings.
28407-3 Sensor values, monitoring Used when there is a suspicion of fault and/or at abnormal values/readings.
28420-3 Flywheel and camshaft signal, test Used when there is suspicious of faulty signals or faulty connected sensor.
Programming
Operation Application
25801-3 MID 233 Control unit, programming When changing ACM or only reprogramming. See
254 ACM, replacing, non-programmed
25802-3 MID 233 Control unit, campaign
28423-3 MID 128 ECU, programming When changing ECU or only reprogramming. See
200 E-ECU, MID 128, changing non-programmed ECU
28422-3 MID 128 ECU, campaign
Service Information
Document Title: Function Group: Information Type: Date:
Engine characteristic curve 210 Service Information 2014/10/30
Profile:
EXC, EC250D NL [GB]
Engine characteristic curve
Figure 1
Engine characteristic curve, ISO 14396 Gross power
P Output power
rpm Engine speed
T Torque
be Fuel consumption
Service Information
Document Title: Function Group: Information Type: Date:
Engine, removing 210 Service Information 2014/10/30
Profile:
EXC, EC250D NL [GB]
Engine, removing
Op nbr 210-070
WARNING
Risk of burns - stop the diesel engine and allow it to cool down before starting any work.
WARNING
Removal of residual pressure from the circuit must be done prior to any maintenance.
NOTE!
Cable ties and clamps that secure hoses and electrical wiring must be removed and then replaced when installing
components.
NOTE!
Disconnected hoses, lines and connections must be plugged. Oil that drains from hoses, lines and connections should be
collected in a container.
1. Place the machine in the service position B. See091 Service positions
2. Turn off the battery disconnect switch.
3. Drain the coolant in a collection container. See .
261 Coolant, changing
4. Remove the DPF hood and the radiator hood.
Figure 1
1.
2.
3.
DPF hood
Engine hood
Radiator hood
5. Remove the engine room cowl frame with the engine hood using a lifting device.
Figure 2
6. Remove the air inlet hose and expansion tank hose.
Figure 3
1.
2.
Air inlet hose
Expansion tank hose
7. Disconnect wire harness connector and the hose (3) from the expansion tank.
Remove the hose (2).
Figure 4
1.
2.
Wire harness connector
Hose
8. Remove the expansion tank with a bracket.
Figure 5
1.
2.
3.
Coolant expansion tank
Bracket
Screw
9. Remove the clamps and the charge air cooler tubes.
Figure 6
1.
2.
3.
Charge air cooler tube (Outlet)
Charge air cooler tube (Inlet)
Clamp
10. Remove the radiator under cover and the engine room under covers.
Figure 7
1.
2.
Radiator under cover
Engine room under cover
11. Remove the clamps and the radiator hoses.
Figure 8
1.
2.
3.
Radiator hose (Inlet)
Clamp
Radiator hose (Outlet)
12. Remove the cooling fan guard.
Figure 9
1.
2.
Screw
Cooling fan guard
13. Remove the mounting screws and lay down the cooling fan inside the radiator shroud safely.
Figure 10
1.
2.
Screw
Cooling fan
14. Remove the main pump. See 913 Hydraulic pump, replacing
15. Disconnect the fuel line hoses (4 pcs).
NOTE!
Ports must be plugged after disassembling hoses.
Figure 11
1. Fuel hose
16. Remove the air conditioner compressor belt.
Suggest:
If the above button click is invalid.
Please download this document
first, and then click the above link
to download the complete manual.
Thank you so much for reading
Figure 12
17. Disconnect the wire harness, remove the compressor and lay it down on the frame.
WARNING
Do not disconnect or loosen connections for the air conditioning unit (AC). Risk of gas leakage.
Figure 13
1.
2.
Air conditioner compressor
Wire harness
18. Disconnect the engine oil remote hoses.
Figure 14
1. Engine oil remote hose
19. Disconnect the engine block heater wire-harness and the cab heater hose.

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Volvo EC250D NL (EC250DNL) Excavator Service Repair Manual Instant Download.pdf

  • 1. Service Information Document Title: Function Group: Information Type: Date: Engine, description 200 Service Information 2014/10/30 Profile: EXC, EC250D NL [GB] Engine, description Engine D8H is a straight six-cylinder, four-stroke, turbocharged diesel engine with direct injection and intercooler. The engine meets governing legislation according to Tier 4 interim for exhaust emissions. The engine features a Common Rail Fuel System controlled by the Engine Electronic Control Unit (E-ECU). The engine with ACT (Advanced Combustion Technology) features split injection and turbocharger with mechanical wastegate. The Exhaust Aftertreatment System (EATS) is equipped with a Diesel Oxidation Catalyst (DOC) and a Diesel Particulate Filter (DPF) to reduce the particulate content in the exhausts. Cooled Exhaust Gas Recirculation (EGR) reduces NO contents and reduces emissions. All electronic functions in the engine are controlled by Volvo's Engine Management System, EMS2.2. For more information, see:        220 Lubrication system, description 230 Fuel system, description 250 Inlet and exhaust system, description 254 Exhaust Aftertreatment System, description 255 Turbocharger, description 260 Cooling system, description 293 Exhaust Gas Recirculation (EGR), description The cylinders are numbered in sequence, starting at the flywheel. Ignition order: 1-5-3-6-2-4. The engine's rotational direction is counter-clockwise, seen from the flywheel side. Engine identification
  • 2. Figure 1 Identification plates The engine's serial number is stamped on the cylinder block's side. The identification plates on the cylinder block's side and on the valve cover contain model designation, serial number, manufacturing country, recommended fuels, and so on. The identification plates also include emission-related supplementary information. The engine's model designation and serial number must be indicated when ordering spare parts. Engine protection The ECU contains functionality designed to protect the engine from damage during extreme operating conditions or from further damage when an essential engine component fails. There are several proactive functions, and different applications have different functions activated. The functions that can be activated are:  High coolant temperature
  • 3.               High inlet manifold air pressure High inlet manifold air temperature High oil temperature Low oil pressure Low coolant level High temperature of cooled EGR exhausts after the EGR-cooler High crankcase pressure High temperature of EGR actuator High soot load High differential pressure across Diesel Particulate Filter (DPF) High exhaust temperature High ECU temperature High DPF temperature EATS air pump failure Various protective actions such as warning lights, engine torque reduction, engine speed limitation, and vehicle speed limitation may be taken when the above functions reach dangerous levels that may damage the engine. In order to always allow the operator to move a machine away from an unsafe situation, there is a delay of at least 30 seconds before the protective actions (such as forced idle and forced shutdown) are activated after a Key-ON. If the engine has been forced to shut down or forced to idle due to an active engine protection function, the operator can obtain a 30 second delay by powering down the EMS with a Key-OFF for 7 seconds and then a Key-ON (the EMS is powered down by the Vehicle-ECU (V-ECU) after the ignition key has been in its OFF position for approx. 7 seconds). In addition to the above protective functions, other software functions may request engine protection, such as:      High Altitude (ensures that high compressor charge-air temperature is never reached) Low Coolant Temp Crank Sensor Failure Gear Ratio Regeneration Warning lights There are two levels for warning lights, an amber caution light and a red stop light.   The amber light indicates a warning situation The red light indicates that the vehicle must be stopped. For more information, see . 387 Central warning Forced Idle The engine can be forced to idle speed by the engine protection function. Forced idle is active until conditions triggering the problem are back within the normal working range or the EMS is powered down. Engine shutdown The engine can be forced to shut down after conditions have reached levels that may cause engine failure and the machine speed is below a specified value. Machine speed and engine speed limits The engine protection function can limit the machine's speed and/or the engine's rpm. Levels of engine protection Available proactive functions depend not only on the application but also on what level of protection has been activated for the specific machine. Two levels of engine protection are offered; the standard level is Basic protection and the optional level is Extended protection. The general difference between basic and extended engine protection is that no active actions such as forced idle and forced shutdown will be taken in basic engine protection (with the exception of crankcase pressure that can cause shutdown in either setup). Warnings will be given to the operator regardless of engine protection level. Parameters      (MCJ) Trimcode CRIN 3.3 injector cylinder 1 (MCK) Trimcode CRIN 3.3 injector cylinder 2 (MCL) Trimcode CRIN 3.3 injector cylinder 3 (MCM) Trimcode CRIN 3.3 injector cylinder 4 (MCN) Trimcode CRIN 3.3 injector cylinder 5
  • 4.     (MCO) Trimcode CRIN 3.3 injector cylinder 6 (FAU) Automatic engine shut off (FAV) Automatic engine shut off, time (YA) Idle speed, setting Supplementary information  200 Component locations Function check  17030-3 Parameter, programming Diagnostics Detailed information about the following relevant warnings and error codes is available under the diagnostics tab. Component Control unit Message ID MID128 PID98 FX1006 MID128 PID175 SE2203 MID128 PID100 SE2302 MID128 PID97 SE2507 MID128 PID105 SE2508 MID128 PID102 SE2516 MID128 PID412 SE2519 MID128 PID81 SE2603 MID128 PID111 SE2606 MID128 PID110 E-ECU temperature MID128 PPID55 Emergency stop (Engine shutdown) MID128 PPID235 Soot load MID128 PPID326
  • 5. Service Information Document Title: Function Group: Information Type: Date: Component locations 200 Service Information 2014/10/30 Profile: EXC, EC250D NL [GB] Component locations Figure 1 Engine, front side 1 Flywheel housing 11 Thermostat housing 2 High pressure fuel pump 12 Engine oil remote port 3 Crankcase ventilation duct 13 Engine oil cooler 4 Spark plug 14 Oil pan 5 Glow plug 15 Common rail 6 Turbocharger waste-gate 16 Dipstick gauge 7 Valve cover 17 ECU connecting port 8 Spark plug cable 18 Fuel feed pump 9 Spark plug control unit 19 Engine oil filter
  • 6. 10 Pre-heating coil housing Figure 2 Engine, back side 20 Fan pulley 26 EGR cooler 21 EGR Venturi tube 27 EGR actuator 22 Air intake tube 28 Starter motor 23 Turbocharger 29 Electric air pump 24 Engine oil filling port 30 Engine oil level sensor 25 Partial flowburner 31 Fan belt
  • 7. Service Information Document Title: Function Group: Information Type: Date: E-ECU, MID 128, changing non-programmed ECU 200 Service Information 2014/10/30 Profile: EXC, EC250D NL [GB] E-ECU, MID 128, changing non-programmed ECU Op nbr 200-068 1. Park the machine in the service position A, see . 091 Service positions 2. Turn OFF the battery disconnect switch. 3. Download software to VCADS Pro computer for target machine. 4. Connect the VCADS Pro computer to the machine, and perform the operation '28423-7 MID 128 control unit, programming'. 5. When VCADS Pro 'MID 128 ECU, programming' window appears, follow the instructions for replacing E-ECU. 6. Disconnect the wiring harness connectors from E-ECU and remove 2 screws fixing the clamps. Figure 1 1. 2. 3. Connector Screw Screw NOTE! Pull up the locking device to disconnect the connector. 7. Remove 4 screws fixing the E-ECU. 8. Install new E-ECU, and tighten 4 screws. 9. Connect the wiring harness connectors to the E-ECU and tighten 2 screws fixing the clamps. 10. After replacing E-ECU, press OK button of VCADS Pro operation '28423-7 MID 128 control unit, programming'.
  • 8. Now VCADS Pro starts the programming of software and parameters to the new E-ECU. NOTE! If not able to read out the parameters with the program operation, the VCADS Pro operation 25438–8 “Nox sensor, age compensation, reset” has to be performed.
  • 9. Service Information Document Title: Function Group: Information Type: Date: E-ECU, MID 128, changing pre-programmed ECU 200 Service Information 2014/10/30 Profile: EXC, EC250D NL [GB] E-ECU, MID 128, changing pre-programmed ECU Op nbr 200-070 1. Park the machine in the service position A, see . 091 Service positions 2. Turn OFF the battery disconnect switch. 3. Connect VCADS Pro computer to the machine, and perform the operation '17030-3 Parameter, programming'. 4. Use the function 'save all parameters to job card'. 5. Disconnect the wiring harness connectors from E-ECU and remove 2 screws fixing the clamps. Figure 1 1. 2. 3. Connector Screw Screw NOTE! Pull up the locking device to disconnect the connector. 6. Remove 4 screws fixing the E-ECU. 7. Install new E-ECU, and tighten 4 screws fixing the E-ECU. 8. Connect the wiring harness connectors to the E-ECU and tighten 2 screws fixing the clamps. 9. Connect VCADS Pro computer to the machine, and perform the operation 17030-3 Parameter, programming'. Now the customer parameters are changed according to the job card saved at step 2. 10. Perform VCADS Pro operation 25438–8 “Nox sensor, age compensation, reset”.
  • 10. Service Information Document Title: Function Group: Information Type: Date: VCADS Pro, Operations 200 Service Information 2014/10/30 Profile: EXC, EC250D NL [GB] VCADS Pro, Operations The following VCADS Pro operations are available for function group 2. Operations used when changing or working on components are mandatory. Tests Operation Application 20046-3 Read out engine information The operation is used to read out the engine emission and engine certificate information when requested by the customer or other interested parties. 21006-3 Cylinder compression, test Used when there is a suspicion of fault and/or at abnormal values/readings. This test indicates if there is any deviation in compression in any cylinder in relation to the other cylinders. As a first check this operation is both easy and fast to perform instead of a real compression test. 23017-3 Feed pressure, inspection Used when there is a suspicion of fault and/or at abnormal values/readings. 23712-3 Injectors shut off, manual Used when there is a suspicion of fault and/or at abnormal values/readings. 23777-3 Fuel system, check Check the fuel system on common rail engines. In this test, it is possible to check the engine at different running condition. 25410-3 Air pump exhaust aftertreatment, test Used when there is a suspicion of fault and/or at abnormal values/readings. Air for combustion and HC injection 25411-3 Burner exhaust aftertreatment, test Used when there is a suspicion of fault and/or at abnormal values/readings. 25433-3 Fuel system exhaust aftertreatment, bleeding Used to remove any air in the EATS system. 25438-3, Nox sensor, age compensation, reset Used to reset the age compensation value stored in the MID 128, E-ECU. A reset is needed either when the E-ECU is replaced and there is no possibility to read out the values from the old E-ECU or when a new Nox sensor is mounted. 25440-3 Fuel pressure, exhaust aftertreatment system, test The test checks; The fuel supply to the shut off valve, pressure and temperature The pressure after MV1 to the HC injector The pressure after MV2 to the burner 25456-3 Exhaust aftertreatment diagnostics Perform a simple check of the included components in the exhaust aftertreatement system. 25457-3 Diesel Particulate Filter Service Regeneration Used when the soot load level becomes higher than what can be removed by the normal regeneration process. See 254 Exhaust Aftertreatment System, description 25460-3 Reset soot and ash load When the diesel particulate filter has been changed, the soot load and the ash load must be reset. The reset is needed to indicate to the system that the filter has been cleaned. The soot load and ash load must only be reset if a clean filter has been installed. 27502-2 Engine speed control, test Used when there is a suspicion of fault and/or at abnormal values/readings. 28407-3 Sensor values, monitoring Used when there is a suspicion of fault and/or at abnormal values/readings. 28420-3 Flywheel and camshaft signal, test Used when there is suspicious of faulty signals or faulty connected sensor. Programming
  • 11. Operation Application 25801-3 MID 233 Control unit, programming When changing ACM or only reprogramming. See 254 ACM, replacing, non-programmed 25802-3 MID 233 Control unit, campaign 28423-3 MID 128 ECU, programming When changing ECU or only reprogramming. See 200 E-ECU, MID 128, changing non-programmed ECU 28422-3 MID 128 ECU, campaign
  • 12. Service Information Document Title: Function Group: Information Type: Date: Engine characteristic curve 210 Service Information 2014/10/30 Profile: EXC, EC250D NL [GB] Engine characteristic curve Figure 1 Engine characteristic curve, ISO 14396 Gross power P Output power rpm Engine speed T Torque be Fuel consumption
  • 13. Service Information Document Title: Function Group: Information Type: Date: Engine, removing 210 Service Information 2014/10/30 Profile: EXC, EC250D NL [GB] Engine, removing Op nbr 210-070 WARNING Risk of burns - stop the diesel engine and allow it to cool down before starting any work. WARNING Removal of residual pressure from the circuit must be done prior to any maintenance. NOTE! Cable ties and clamps that secure hoses and electrical wiring must be removed and then replaced when installing components. NOTE! Disconnected hoses, lines and connections must be plugged. Oil that drains from hoses, lines and connections should be collected in a container. 1. Place the machine in the service position B. See091 Service positions 2. Turn off the battery disconnect switch. 3. Drain the coolant in a collection container. See . 261 Coolant, changing 4. Remove the DPF hood and the radiator hood. Figure 1 1. 2. 3. DPF hood Engine hood Radiator hood 5. Remove the engine room cowl frame with the engine hood using a lifting device.
  • 14. Figure 2 6. Remove the air inlet hose and expansion tank hose. Figure 3 1. 2. Air inlet hose Expansion tank hose 7. Disconnect wire harness connector and the hose (3) from the expansion tank. Remove the hose (2). Figure 4 1. 2. Wire harness connector Hose 8. Remove the expansion tank with a bracket.
  • 15. Figure 5 1. 2. 3. Coolant expansion tank Bracket Screw 9. Remove the clamps and the charge air cooler tubes. Figure 6 1. 2. 3. Charge air cooler tube (Outlet) Charge air cooler tube (Inlet) Clamp 10. Remove the radiator under cover and the engine room under covers. Figure 7
  • 16. 1. 2. Radiator under cover Engine room under cover 11. Remove the clamps and the radiator hoses. Figure 8 1. 2. 3. Radiator hose (Inlet) Clamp Radiator hose (Outlet) 12. Remove the cooling fan guard. Figure 9 1. 2. Screw Cooling fan guard 13. Remove the mounting screws and lay down the cooling fan inside the radiator shroud safely.
  • 17. Figure 10 1. 2. Screw Cooling fan 14. Remove the main pump. See 913 Hydraulic pump, replacing 15. Disconnect the fuel line hoses (4 pcs). NOTE! Ports must be plugged after disassembling hoses. Figure 11 1. Fuel hose 16. Remove the air conditioner compressor belt.
  • 18. Suggest: If the above button click is invalid. Please download this document first, and then click the above link to download the complete manual. Thank you so much for reading
  • 19. Figure 12 17. Disconnect the wire harness, remove the compressor and lay it down on the frame. WARNING Do not disconnect or loosen connections for the air conditioning unit (AC). Risk of gas leakage. Figure 13 1. 2. Air conditioner compressor Wire harness 18. Disconnect the engine oil remote hoses. Figure 14 1. Engine oil remote hose 19. Disconnect the engine block heater wire-harness and the cab heater hose.